CN1170110C - Pre-combustion industrial furnace - Google Patents
Pre-combustion industrial furnace Download PDFInfo
- Publication number
- CN1170110C CN1170110C CNB011070358A CN01107035A CN1170110C CN 1170110 C CN1170110 C CN 1170110C CN B011070358 A CNB011070358 A CN B011070358A CN 01107035 A CN01107035 A CN 01107035A CN 1170110 C CN1170110 C CN 1170110C
- Authority
- CN
- China
- Prior art keywords
- precombustion chamber
- chamber
- kiln
- precombustion
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 239000002893 slag Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 20
- 239000011449 brick Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002802 bituminous coal Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 description 1
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The present invention discloses a precombustion tye industrial kiln which comprises a kiln body, a high temperature zone, a main combustion chamber, an outer arch, a precombustion chamber, a smoke guiding path and an air supply system, wherein the high temperature zone and the main combustion chamber are arranged in the kiln body; the outer arch is arranged on the lower part of the kiln body; the main combustion chamber and the precombustion chamber are communicated by the smoke guiding path; the air supply system is used for supplying air to the precombustion chamber. A head end treating method is adopted by the present invention for black smoke pollution of industrial kilns, and thus, the generation of black smoke is radically inhibited. The kiln of the present invention has the advantages of low manufacture cost, low operation cost and small occupation area, overcomes the disadvantages of large investment, high operation cost and large occupation area of the tail end treating technology, and is especially suitable for the environmental protection improvement of traditional industrial kilns at present.
Description
Technical field
The present invention relates to a kind of industrial kiln, particularly a kind of Industrial Stoves that fuel can be carried out precombustion.
Background technology
Industrial Stoves are mainly used in direct or indirect roasting workpiece, because of it has that cost is low, temperature is high, use is simple and characteristics such as reliable, are widely used in industries such as pottery, chemical industry and machinery.Traditional Industrial Stoves mainly contain kiln body, combustion chamber, flue, high-temperature region and slag hole and constitute.Though such furnace construction is simple and majority is a fuel with aboundresources and the low bituminous coal of cost, its pollution is quite serious.According to check and analysis, its dark brown great majority are 3～5 grades of Lin Geman, and smoke discharge amount is at 150～800mg/m
3, the dense black smoke of discharging when particularly throwing coal causes serious harm to the health and the ecological environment of human body on every side, and such kiln must constantly be thrown coal when using, and causing most such is that the Industrial Stoves of fuel discharge black smoke for a long time in large quantities with bituminous coal.
Along with going deep into of national sustainable development strategy, traditional Industrial Stoves have to administer because of it is seriously polluted, realize qualified discharge.The mode of administering has two kinds at present, and a kind of is to change combustion material, is about to traditional kiln and changes burning anthracite, electricity or natural gas etc. into; But burn anthracite the discharge capacity of sulfur dioxide is increased, and ignition temperature have do not reach technological requirement again, improvement expenses has high input when using electricity instead or burning natural gas, and later production cost increases considerably; Another kind of mode is to adopt tail end improvement technology, promptly installs smoke abatement and dust control facilities such as various types of dedusters, air-introduced machine on furnace flue additional, but this class methods treatment cost height, kiln operating cost height, have in addition cause secondary pollution.How traditional Industrial Stoves being hanged down transformation intensively makes its flue dust qualified discharge become problem anxious to be solved.
Summary of the invention
The objective of the invention is to shortcoming, a kind of pre-combustion industrial furnace that suppresses the environment-friendly type of black smoke formation at head end is provided at traditional industry kiln existence in the background technology.
Solution of the present invention: the present invention includes the kiln body, be arranged at high-temperature region, main chamber and grate in the kiln body, be arranged on the outer arch and the slag hole of kiln body bottom, key is also to comprise precombustion chamber, leads flue, supply air system; Described precombustion chamber is arranged on outer arch top, and precombustion chamber is provided with the charging fire door, is provided with wind-distributing pipe in the bottom, is provided with the passage that communicates with main chamber at the rear portion of precombustion chamber; Described supply air system comprises blower fan and air supply duct, and described air supply duct is connected with the interior wind-distributing pipe of precombustion chamber; The described flue of leading is communicated with precombustion chamber and main chamber.
In order to control coal combustion better, described air supply duct is provided with volume damper.
Operation principle: burning of coal can be divided into catch fire, burning and residual burnt burning three phases.(300 ℃) raw coal can in seconds catch fire at a certain temperature, and this moment, the air requirements amount was little; The just fiercely burning of back coal of catching fire, air requirements amount surge, if untimely adjusting wind supply quantity, the fugitive constituent of separating out in the coal just can not completing combustion and form black smoke; When not having flame substantially or short pale blue flame is arranged, coal surface just entered the residual burnt combustion phases of coal, i.e. the burning of fixed carbon in the coal, and the air requirements amount is less at this moment, does not also produce black smoke, usually sustainable 2～3 hours of after-flame in kiln.The above-mentioned combustion process that the present invention is based on coal is carried out work: at first raw coal sent into precombustion chamber and caught fire and carry out pre-burning, and supply air system work simultaneously, the wind-distributing pipe of precombustion chamber bottom is sent into air, and regulates volume damper according to combustion case; When coal surface does not have flame substantially, the coal after the pre-burning is pushed main chamber from the precombustion chamber rear portion and make its burning of proceeding fixed carbon, because a small amount of black smoke of precombustion chamber generation also enters main chamber and burns away and wait to use up by leading flue under the chimney suction function.
The present invention is according to the burning of coal process, the combustion phases of a large amount of air of coal demand is carried out in precombustion chamber, and should the stage coal separate out and the formed black smoke of not clean-burning composition send into main chamber and fully burn, black smoke is disappeared.Therefore the present invention has suppressed the generation of black smoke, and the utilization rate of coal is improved greatly the method that the black smoke pollution of Industrial Stoves has adopted head end to administer from the source; Simultaneously, to increase the expense and the operating cost thereof of precombustion chamber part low, floor space is little, has overcome that tail end improvement technology has high input, operating cost height and the big shortcoming of floor space; The present invention is particularly suitable for the environmental transformation of present traditional industry kiln.
Through proving to the experiment of traditional industry kiln and through environment monitoring, adopt pre-combustion industrial furnace under the prerequisite that does not change original production process and ature of coal, reach dark brown less than 1.0 grades of Lin Geman, smoke discharge amount reduces more than 80%, chimney is over-emitting black exhaust not, coal consumption reduces 3～5%, can not cause secondary pollution, reaches the discharge standard of country fully; Compare with tail end improvement technology commonly used at present, one-time investment reduces more than 60%, and operating cost descends more than 90%, and floor space reduces about 75%, and short construction period.
Description of drawings
Fig. 1 is front view of the present invention (broken section);
Fig. 2 is a left view of the present invention (analysing and observe);
Fig. 3 is vertical view of the present invention (broken section);
Fig. 4 is a wind-distributing pipe structural representation of the present invention.
Among the figure: 1, ajutage, 2, the precombustion chamber heat-insulation layer, 3, the precombustion chamber top; 4, lead the flue heat-insulation layer, 5, lead flue top, 6, lead flue, 7, the high-temperature region, 8, rear arch, 9, lead flue outlet, 10, grate, 11, horizontal stove beam, 12, slag hole, 13, lower furnace door, 14, face arch, 15, outer arch, 16, wind-distributing pipe, 17, steel plate, 18, upper furnace door, 19, fire-resistant block, 20, hogging, 21, lead chimney intake, 22, precombustion chamber, 23, blower fan, 24, volume damper, 25, main chamber.
The specific embodiment
As shown in Figure 2, be built into kiln body, chimney, flue, high-temperature region 7, main chamber 25, face arch 14, rear arch 8, slag hole 12 by prior art, grate 10 is installed in the main chamber bottom, at face arch 14 and 10 of grates lower furnace door 13 is installed, is reserved on the body of wall at main chamber when building the kiln body and lead flue outlet 9; Build hogging 20, make its lower edge exceed face arch 14 upper edge 40mm, arch 15 outside building on lower furnace door makes it highly identical with face arch 14; Build a wall to concordant with outer arch 15 tops in outer on the ground arch 15 both sides, encircle outside 15 and the wall of face arch 14 tops on pour into a mould smooth formation one platform with refractory concrete, and above face arch 14, build fire-resistant block 19, it is fixing that its two ends are bumped in the side wall; 9 wind-distributing pipes 16 are lain in face arch 14 and outer arch 15 tops and make the eye of wind upwards, above wind-distributing pipe 16 imports, keep flat a steel plate 17 to make upper furnace door 18; Build precombustion chamber 22 in wind-distributing pipe 16 both sides by laying bricks or stones with refractory brick, make precombustion chamber 22 long * wide * high 1200mm * 800mm * 1500mm of being, and respectively stay a position of leading chimney intake 21 and reserving upper furnace door 18 in front in both sides, build up precombustion chamber top 3 at the top pouring refractory concrete, spread precombustion chamber heat-insulation layer 2 more at an upper portion thereof; Build by laying bricks or stones with refractory brick in precombustion chamber 22 both sides and to lead flue 6, make to lead flue outlet 9 and lead chimney intake 21 to be communicated with, water refractory concrete and build up and lead flue top 5 leading flue 6 tops, overlay one deck more thereon and lead flue heat-insulation layer 4; Air feed system is made up of blower fan 23, ajutage 1 and volume damper 24, blower fan 23 is fixed on the kiln top, volume damper 24 is installed in the blower fan outlet, ajutage 1 is spread to wind-distributing pipe 16 air inlets from the kiln top, and distinguish ends with 9 ￠ 30mm steel pipes and insert wind-distributing pipes 16, the other end respectively with ajutage 1 welding, again with concrete with the interface external seal.
Wind-distributing pipe 16 can be made of refractory material or heat-resisting cast iron; Can lay some ajutages at most at kiln to the kiln that temperature requirement is higher, enter wind-distributing pipe about 200 ℃ again, to improve the kiln temperature level so that the heat that utilizes the kiln top to distribute is heated to wind.
Claims (2)
1, a kind of pre-combustion industrial furnace comprises the kiln body, is arranged at high-temperature region, main chamber and grate in the kiln body, is arranged on the outer arch and the slag hole of kiln body bottom, it is characterized in that also comprising precombustion chamber, leads flue and supply air system; Described precombustion chamber is arranged on outer arch top, and precombustion chamber is provided with the charging fire door, is provided with wind-distributing pipe in the precombustion chamber bottom, is provided with the passage that communicates with main chamber at the rear portion of precombustion chamber; Described supply air system comprises blower fan and air supply duct, and described air supply duct is connected with the interior wind-distributing pipe of precombustion chamber; The described flue of leading is communicated with precombustion chamber and main chamber.
2, pre-combustion industrial furnace according to claim 1 is characterized in that described air supply duct is provided with volume damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011070358A CN1170110C (en) | 2001-01-12 | 2001-01-12 | Pre-combustion industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011070358A CN1170110C (en) | 2001-01-12 | 2001-01-12 | Pre-combustion industrial furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1306192A CN1306192A (en) | 2001-08-01 |
| CN1170110C true CN1170110C (en) | 2004-10-06 |
Family
ID=4655989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011070358A Expired - Fee Related CN1170110C (en) | 2001-01-12 | 2001-01-12 | Pre-combustion industrial furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1170110C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746192B (en) * | 2017-08-31 | 2020-05-19 | 重庆七星龙环保发展有限公司 | Activation kiln for treating polluted soil and control method thereof |
-
2001
- 2001-01-12 CN CNB011070358A patent/CN1170110C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1306192A (en) | 2001-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207455621U (en) | A kind of lower heat of combustion coal gas obtains the high effective flue gas furnace apparatus of high wind-warm syndrome | |
| CN1086788C (en) | High temperature high pressure electric power station boiler fully burning blast-furnace gas | |
| CN101294770A (en) | Alloy melting heat-preserving crucible furnace | |
| CN101487593A (en) | Synthetic energy-saving emission-reducing partial oxygenation combustion-supporting apparatus and method | |
| CN2653308Y (en) | Homogenizing pyrogenic medical garbage incinerator | |
| CN1170110C (en) | Pre-combustion industrial furnace | |
| CN201159472Y (en) | Energy saving and emission reduction chain boiler equipment | |
| CN216845660U (en) | Novel multi-fuel high-temperature flue gas fluidized bed furnace | |
| CN106643186B (en) | Mechanism charcoal kiln cigarette purification furnace | |
| CN109798764A (en) | A kind of the environment-friendly and energy-efficient combustion apparatus and technique of mating bundled scrap preheating | |
| CN100494776C (en) | Thoroughly clean the combustion unit | |
| CN2544237Y (en) | Coal slurry combustion energy-saving flame-reversing kiln | |
| CN206207451U (en) | Mechanism charcoal kiln cigarette purification furnace | |
| CN2521495Y (en) | Burner adapted for removing source of atmospheric pollution | |
| CN101070956A (en) | Coal-water slurry combustion method and its combustion equipment | |
| CN2195041Y (en) | Combination grate boiler | |
| CN87215124U (en) | High covering rate furnace arch reinforced combustion block-feeding boiler | |
| CN200982672Y (en) | High-efficiency energy-saving environment protection stove | |
| CN2573870Y (en) | Vertical air distribution combustion atmospheric hot-water boiler | |
| CN100396992C (en) | Purification heating furnace for thermal desulfurization capable of eliminating pollution at source | |
| CN2202248Y (en) | Double-hearth atmospheric hot-water boiler | |
| CN201126180Y (en) | Fire coal smokeless furnace kiln | |
| CN208620591U (en) | Hot blast stove using combustible gas for secondary combustion | |
| CN2368851Y (en) | Asphalt smelting oven | |
| CN2632498Y (en) | Water sealed gas heating furnace with airing sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |